Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual ano tem um Quarto de Finalistas de £1.000 e Semi-Finalistas de £1.500?
 ###Tabelas: CREATE TABLE singles_titles__92 (singles_titles__92_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Opponent in the final VARCHAR, Score VARCHAR) CREATE TABLE uefa_club_competitions_record (uefa_club_competitions_record_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Competition VARCHAR, Round VARCHAR, Opponent VARCHAR, Result VARCHAR, Venue VARCHAR) CREATE TABLE lpga_tour_career_summary (lpga_tour_career_summary_id AUTO_INCREMENT PRIMARY KEY, Year INT, Tournaments played INT, Cuts made INT, Wins INT, 2nd INT, 3rd INT, Top 10s INT, Best finish VARCHAR, Earnings ($) INT, Money list rank INT, Scoring average VARCHAR, Scoring rank INT) CREATE TABLE radio_and_cd_audio_drama (radio_and_cd_audio_drama_id AUTO_INCREMENT PRIMARY KEY, Year INT, Role VARCHAR, Author VARCHAR, Radio Station/Production Company VARCHAR, Release/Air Date VARCHAR) CREATE TABLE prize_money (prize_money_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Winner VARCHAR, Runner-Up VARCHAR, Semi-Finalists VARCHAR, Quarter-Finalists VARCHAR, Last 16 VARCHAR, Last 32 VARCHAR, Last 64 VARCHAR, Total VARCHAR)  
SELECT Year FROM prize_money WHERE Quarter-Finalists = £1,000 AND Semi-Finalists = £1,500